# Sudoku ▦ vs Challenge! Sudoku

The clearest difference is review sentiment: Challenge! Sudoku at 100% against Sudoku ▦'s 38%. Challenge! Sudoku also leads on ads (none vs shown) and update cadence (every 2 days vs every 2 weeks). Sudoku ▦'s advantage is ratings volume (104K vs 2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Challenge! Sudoku holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Sudoku ▦ has 104K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 38% of Sudoku ▦'s written reviews are positive against 100% of Challenge! Sudoku's.

Sudoku ▦ ships an update every 2 weeks, Challenge! Sudoku every 2 days. The most recent releases landed on November 1, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Sudoku ▦ | Challenge! Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (104K ratings)](https://appshunter.io/ios/app/sudoku/id1407780576/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/challenge-sudoku-classic-game/id6468818921/reviews)** |
| Number of ratings | **104K** | 2 |
| Positive reviews | 37.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 249 MB | 58 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Tripledot Studios](https://appshunter.io/developer/1191319103) | [kyulabs](https://appshunter.io/developer/1380867471) |

## What reviewers say

### Sudoku ▦

[App page](https://appshunter.io/ios/app/sudoku/id1407780576)

Enjoy the classic paper-and-pencil puzzle game on your phone with a clean, elegant design. Challenge your mind with multiple difficulty levels and helpful tools to aid your solving experience.

**Highlights:** Thousands of free puzzles, Classic Sudoku design, Pencil mode for notes, Highlight duplicates, Optional mistake limit, Four difficulty levels, Customizable appearance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎮 Great game
- 💡 Challenging levels
- 📊 Useful statistics and insights
- 🧠 Brain-stimulating

**What reviewers complain about**

- 🤖 Too many ads
- 🕰️ Ads disrupt gameplay
- 🔇 Loud ads disrupt audio
- 🔋 High battery drain

**Reported bugs**

- Freezing and crashing issues
- Incorrect number placement detection
- Daily challenge progress not saving properly

**Requested features**

- Option to pay to remove ads
- More customization options
- Ability to reset puzzles
- Improved performance on older devices


### Challenge! Sudoku

[App page](https://appshunter.io/ios/app/challenge-sudoku-classic-game/id6468818921)

Engage in classic Sudoku puzzles with a competitive edge. Challenge players globally and locally to achieve top rankings on leaderboards. Customize difficulty levels to suit your skill, from beginner to expert.

**Highlights:** Global ranking system, Compete with friends, Multiple difficulty levels, User-friendly interface, Record sharing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku ▦ free?

Sudoku ▦ is free to download, with no in-app purchases.

### Is Challenge! Sudoku free?

Challenge! Sudoku is free to download, with no in-app purchases.

### Which has better reviews, Sudoku ▦ or Challenge! Sudoku?

Challenge! Sudoku is rated higher. Sudoku ▦ averages 4.7 out of 5 from 104K ratings, while Challenge! Sudoku averages 5.0 from 2 ratings.

### Do Sudoku ▦ or Challenge! Sudoku have ads?

Sudoku ▦ shows ads; Challenge! Sudoku does not.

### Which is updated more often, Sudoku ▦ or Challenge! Sudoku?

Sudoku ▦ ships an update every 2 weeks, and Challenge! Sudoku every 2 days. Most recently, Sudoku ▦ was updated on November 1, 2026 and Challenge! Sudoku on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*